Afghanistan's new interim leader, Hamid Karzai, has called upon the people of Afghanistan to help hunt down Osama bin Laden and Mullah Mohammed Omar.
Speculation has intensified over the location of the pair after a cave complex believed to be bin Laden's main base was seized and Mullah Omar's stronghold of Kandahar fell to the opposition.
Mr Karzai said that both men would face international justice if they are caught.
Reports from Kandahar say that the Taliban leader is under the protection of a former Mujahadeen commander who is sympathetic to the Taliban. Other reports claim Mullah Omar was seen near the Pakistan border.
General Tommy Franks, chief of the United States Central Command, said he simply did not know where Mullah Omar was and that he did not know what would happen to Taliban leaders who were captured.
The United States' Deputy Defence Secretary said that US forces would track down Osama bin Laden and Mullah Omar outside of Afghanistan, if they managed to cross the border.
Paul Wolfowitz pinpointed Pakistan, Somalia and Yemen as likely refuges for the men. He warned other countries against harbouring them.
Meanwhile, the rival Afghan militia occupying the southern city of Kandahar after the Taliban surrender are reported to have formed a local council to help end clashes between the fighters.
In a separate development, US and Afghan forces continue to attack Osama bin Laden's al-Qaeda group in Tora Bora. Local fighters say that they expect to capture him within days.
"Our mujahedin are willing to fight. Today or tomorrow we are going to launch a big attack and I think they will surrender to us," Commander Hazrat Ali said. He added that they had received information that bin Laden was hiding in the Tora Bora mountains.
